Quality control provisions applied in the preparation and characterisation of Pu-bearing PERLA standards

Abstract

This report describes the work carried out at different laboratories where Pu-bearing samples, intended for use as reference materials for NDA measurements, are prepared and characterised. The standard samples are produced from PuO(2) and MOX batches of different nature and are at present stored in the PERLA facility at the Institute for Safety Technology of the JRC Ispra and are available for use. Particular attention is paid to the quality control procedures adopted during the sampling, preparation and analysis of the material, to fulfil the requirements established "a priori" for NDA standards to be used in safeguards. The results of the different quality control checks are presented and discussed. This report should be used in conjunction with the PERLA Standard Certificates, which are issued for each type of material considered, to give the user the possibility of tracing all analytical data back to primary standards.